package org.apache.commons.graph.algorithms.elo

import java.util.*

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/

internal class SimplePlayersRank : PlayersRank<String> {

    private val ranks: MutableMap<String, Double> = TreeMap()

    override fun getRanking(player: String): Double {
        if (!ranks.containsKey(player)) {
            return 0.0
        }
        return ranks[player]!!
    }

    override fun toString(): String {
        return ranks.toString()
    }

    override fun updateRanking(player: String, ranking: Double) {
        ranks[player] = ranking
    }
}
